Not sure how old your tires are, and don't have the receipt from your last purchase?No worries -- this is a common issue and we can show you exactly how to find out.If you look closely at the side of each of your tires, you'll see a bunch of letters and numbers.
Look for a number that starts with the letters “DOT,” followed by a series of 10-12 characters. The first two digits are the week of manufacture, and the last two digits are the year.
For example, if the last four digits of the DOT code are 0203, that means that the tire was manufactured during the second week of the year 2003. However…if your tires were made before 2000, it gets a bit more complicated.
The date of manufacture is the last three digits of the code.
The first two digits refer to the week within that year.
For example, if the last 3 digits are 022, it means that the tire was manufactured in the second week of the year, and the year is the second year of the decade.
This is where it gets confusing -- there's no universal identifier that signifies which decade, so in this example the tire could have been manufactured in 1982 or 1992.Some tires do have a small triangle following the DOT code to indicate the 1990s.If you look at the tires sidewall and see a DOT number that appears to be incomplete, that's because the DOT's current regulations require the entire number to be branded on only one sidewall, while the opposite sidewall is branded with just the first few digits.To see the entire DOT number, just look on the other sidewall.The next time you buy tires from Tire Buyer, make sure you keep your confirmation email .Then you'll always know how old your tires are without having to check out your sidewalls -- and you'll be ready in case you ever need to make a warranty claim.